58% (1995)

60% (1998)

65% (2000)

57% (1997)

47% (1998)

48% (1998)

54% (1997)

35% (1987)

54% (1993)

48% (1992)

60% (1998)

62% (2001)

72% (1987)

0% (1994)

38% (1992)

46% (1992)

37% (1994)

36% (2022)

40% (1999)

52% (2001)